Cutter-bar



No. 6|5,233. Patented nec. 6, |898. A. .1. ANTHONY.

CUTTER BAR.

(Application filed Dec. 3, 1897.)

(No Model.)

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UNITED STATES PATENT OEEICE.

ALBERT J. ANTHONY, OF BIG RUN, PENNSYLVANIA, ASSIGNOR OF ONE- THIRD TOC. U. ANTHONY, OF DUBOIS, PENNSYLVANIA.

CUTTER-BAR.

SPECIFICATION forming part of Letters Patent No. 615,233, dated December6, 1898.

' Application iiled Deoember'S, 1897. Serial No. 660,648. (No model.) Y

To @ZZ whom, t nto/,y concern:

Beit known that I, ALBERT J. ANTHONY, residing at Big Run, in the countyof Jefferson and State of Pennsylvania, have invented a new and usefulCutter-Bar, of which the following is a specification.

My invention has relation to cutter-bars for harvesting-machines, andhas for itslobject to generally improve the construction and operationof such devices.

A special object of my invention is to provide means whereby the knivesmay be rigidly but removably secured to the knife-bar without the use ofscrews or other removable fastening devices.

Another object of my invention is to provide means whereby thecutter-bar is'rigidly held in place, but permitted to reciprocate freelyand with the least possible friction.

`With these and other objects in view my invention consists in acutter-bar provided with peculiarly-formed seats for the reception ofknives correspondingly shaped, whereby the knives may be placed orremoved and are securely held in position on the bar without the use ofscrews, rivets, or such like fastening means. Y

My invention further consists in the improved construction, arrangement,and combination of parts hereinafter fully described and afterwardspecifically pointed out in the claims.

In order to enable others skilled in the art to which my invention mostnearly appertains to make and use the same, I will now proceed todescribe its construction and operation, reference being had to theaccompanying drawings, forming part of this specification, in which-Figure l is a perspective view illustrating my invention detached fromthe machine, represented as in position for practical operation. Fig. 2is a detail perspective view of a portion of the knife-bar. Fig. 3 is adetail longitudinal sectional view of the cu tter. Fig. 4 is a detailview, in transverse section, of the cutter. Fig. 5 is a detailperspective View of one of the knives removed from the knife-bar.

Figs. 6 and 7 are detail views in plan and section of the inner end ofthe cutter-bar and attachments.

Referring to the drawings by letters, A is the flngerbar, B theknife-bar, and C the top bar, which together form what is known as thecutter-bar.

The finger-bar maybe of any ordinary approved construction such as areusually used in harvesting-machines,the knife-bar B being mounted uponthe top of the finger-bar and the top bar C upon the top of theknife-bar B. The knife-bar B is provided with a series of blocks orIianges D, lying transversely upon the upper surface of the bar, each.block being provided at its outer ends with overhanging flanges E and Fand in its sides with notches G and H.

I indicates one of my improved removable knives. These knives are formedat their forward edges and points in the usual manner of -knives forharvesting-machines, being V-Shaped and provided with lbeveled sharpenededges J. They are also provided with side lugs or projections K and L,as clearly shown. In assembling the parts ofv the cutter-bar theknife-bar is laid upon the finger-bar, the knives I laid upon theknife-bar with their side lugs K and L in the side notches II and G ofthe blocks D, and then the top bar is slid into position under theiianges E and F until its outer end abuts against the block M, securedto the top of the inger-bar at its inner end. This top bar securelyholds the knives in position without the use of screws, rivets, or otherlike fastening devices, but leaves them free to be removed from theknifebar upon the withdrawal of the top bar C.

Thetop bar C is provided with an upwardextending flange N at its one endto facilitate the manipulation of it and is prevented from accidentaldisplacement by a spring-impelled pawl O, pivotally secured to the innerend of the knife-bar at P,Vas illustrated at the right hand of Fig. landin Fig. 6.

- From kthe foregoing description it will be obvious that I haveprovided means whereby the knives of cutter-bars can be readily removedfor sharpening or renewing Without the necessity of providing anyfastening except the blocks D, which form part of the knife-bar itself.The same blocks, with their overhanging-iianges E and F,furnish bearingsIOO upon the top bar upon which the knife-bar will reciprocate with aminimum of friction, such bearings extending over only a small portionof the surface of the top bar and being in a position where they can bemost easily lubricated.

The advantages attending the use of such a construction are numerous andneed not be further specified here.

lVhile I have illustrated and described the best means now known to mefor carrying out my invention, I do not wish to be understood asrestricting myself to the exact details of construction shown anddescribed, but hold that any slight changes or variations such as mightsuggest themselves to the ordinary mechanic will properly fall withinthe limit and scope of my invention.

Having thus fully described myinvention, what I claim as new, and desireto secure by Letters Iatent of the United States, is

l. A knife-barforharvesting-machines provided with transverse blocksmounted upon its upper edge formed and positioned to receive the mainbody of the knives between them, each block having rectangularrecessesin its sides, substantially as and for the pui'- pose set forth.

2. In a cutter-barter harvesting-machines a knife-bar provided with aseries of transverse blocks having side recesses or notches, incombination with knives shaped in outline to accurately iit betweenadjacent blocks on the knife-bar, and provided with lugs to enter therecesses in the blocks, substantially as described.

3. The combination in a harvesting-machine of a slidable knife-barprovided with transverse blocks on its upper-surface having siderecesses and overhanging flanges, knives located in the spaces betweenthe transverse blocks and provided with lugs fitting the side recessesof said blocks, and a top bar fitting upon the top of the transverseblocks and the knives, the overhanging flanges embracing the edges ofthe top bar and preventing its displacement, substantially as described.

AL ERT J. ANTHONY.

lVitnesses:

ALTA IIAYEs, W. C. PENTZ.

